<?php
require(dirname(__FILE__) . '/fpdf.php');

class PDF_Chinese extends FPDF
{
    var $Big5_widths = array();
    var $GB_widths = array();
    function PDF_Chinese($orientation = 'P', $unit = 'mm', $format = 'A4')
    {
        FPDF::FPDF($orientation = 'P', $unit = 'mm', $format = 'A4');
        $this->Big5_widths = array(' ' => 250, '!' => 250, '"' => 408, '#' => 668, '$' => 490, '%' => 875, '&' => 698, '\'' => 250,
            '(' => 240, ')' => 240, '*' => 417, '+' => 667, ',' => 250, '-' => 313, '.' => 250, '/' => 520, '0' => 500, '1' => 500,
            '2' => 500, '3' => 500, '4' => 500, '5' => 500, '6' => 500, '7' => 500, '8' => 500, '9' => 500, ':' => 250, ';' => 250,
            '<' => 667, '=' => 667, '>' => 667, '?' => 396, '@' => 921, 'A' => 677, 'B' => 615, 'C' => 719, 'D' => 760, 'E' => 625,
            'F' => 552, 'G' => 771, 'H' => 802, 'I' => 354, 'J' => 354, 'K' => 781, 'L' => 604, 'M' => 927, 'N' => 750, 'O' => 823,
            'P' => 563, 'Q' => 823, 'R' => 729, 'S' => 542, 'T' => 698, 'U' => 771, 'V' => 729, 'W' => 948, 'X' => 771, 'Y' => 677,
            'Z' => 635, '[' => 344, '\\' => 520, ']' => 344, '^' => 469, '_' => 500, '`' => 250, 'a' => 469, 'b' => 521, 'c' => 427,
            'd' => 521, 'e' => 438, 'f' => 271, 'g' => 469, 'h' => 531, 'i' => 250, 'j' => 250, 'k' => 458, 'l' => 240, 'm' => 802,
            'n' => 531, 'o' => 500, 'p' => 521, 'q' => 521, 'r' => 365, 's' => 333, 't' => 292, 'u' => 521, 'v' => 458, 'w' => 677,
            'x' => 479, 'y' => 458, 'z' => 427, '{' => 480, '|' => 496, '}' => 480, '~' => 667);

        $this->GB_widths = array(' ' => 207, '!' => 270, '"' => 342, '#' => 467, '$' => 462, '%' => 797, '&' => 710, '\'' => 239,
            '(' => 374, ')' => 374, '*' => 423, '+' => 605, ',' => 238, '-' => 375, '.' => 238, '/' => 334, '0' => 462, '1' => 462,
            '2' => 462, '3' => 462, '4' => 462, '5' => 462, '6' => 462, '7' => 462, '8' => 462, '9' => 462, ':' => 238, ';' => 238,
            '<' => 605, '=' => 605, '>' => 605, '?' => 344, '@' => 748, 'A' => 684, 'B' => 560, 'C' => 695, 'D' => 739, 'E' => 563,
            'F' => 511, 'G' => 729, 'H' => 793, 'I' => 318, 'J' => 312, 'K' => 666, 'L' => 526, 'M' => 896, 'N' => 758, 'O' => 772,
            'P' => 544, 'Q' => 772, 'R' => 628, 'S' => 465, 'T' => 607, 'U' => 753, 'V' => 711, 'W' => 972, 'X' => 647, 'Y' => 620,
            'Z' => 607, '[' => 374, '\\' => 333, ']' => 374, '^' => 606, '_' => 500, '`' => 239, 'a' => 417, 'b' => 503, 'c' => 427,
            'd' => 529, 'e' => 415, 'f' => 264, 'g' => 444, 'h' => 518, 'i' => 241, 'j' => 230, 'k' => 495, 'l' => 228, 'm' => 793,
            'n' => 527, 'o' => 524, 'p' => 524, 'q' => 504, 'r' => 338, 's' => 336, 't' => 277, 'u' => 517, 'v' => 450, 'w' => 652,
            'x' => 466, 'y' => 452, 'z' => 407, '{' => 370, '|' => 258, '}' => 370, '~' => 605);
    } 
    function AddCIDFont($family, $style, $name, $cw, $CMap, $registry)
    {
        $fontkey = strtolower($family) . strtoupper($style);
        if (isset($this->fonts[$fontkey]))
            $this->Error("Font already added: $family $style");
        $i = count($this->fonts) + 1;
        $name = str_replace(' ', '', $name);
        $this->fonts[$fontkey] = array('i' => $i, 'type' => 'Type0', 'name' => $name, 'up' => -130, 'ut' => 40, 'cw' => $cw, 'CMap' => $CMap, 'registry' => $registry);
    } 

    function AddCIDFonts($family, $name, $cw, $CMap, $registry)
    {
        $this->AddCIDFont($family, '', $name, $cw, $CMap, $registry);
        $this->AddCIDFont($family, 'B', $name . ',Bold', $cw, $CMap, $registry);
        $this->AddCIDFont($family, 'I', $name . ',Italic', $cw, $CMap, $registry);
        $this->AddCIDFont($family, 'BI', $name . ',BoldItalic', $cw, $CMap, $registry);
    } 

    function AddBig5Font($family = 'Big5', $name = 'MSungStd-Light-Acro')
    { 
        // Add Big5 font with proportional Latin
        $cw = $this->Big5_widths;
        $CMap = 'ETenms-B5-H';
        $registry = array('ordering' => 'CNS1', 'supplement' => 0);
        $this->AddCIDFonts($family, $name, $cw, $CMap, $registry);
    } 

    function AddBig5hwFont($family = 'Big5-hw', $name = 'MSungStd-Light-Acro')
    { 
        // Add Big5 font with half-witdh Latin
        for($i = 32;$i <= 126;$i++)
        $cw[chr($i)] = 500;
        $CMap = 'ETen-B5-H';
        $registry = array('ordering' => 'CNS1', 'supplement' => 0);
        $this->AddCIDFonts($family, $name, $cw, $CMap, $registry);
    } 

    function AddGBFont($family = 'GB', $name = 'STSongStd-Light-Acro')
    { 
        // Add GB font with proportional Latin
        $cw = $this->GB_widths;
        $CMap = 'GBKp-EUC-H';
        $registry = array('ordering' => 'GB1', 'supplement' => 2);
        $this->AddCIDFonts($family, $name, $cw, $CMap, $registry);
    } 

    function AddGBhwFont($family = 'GB-hw', $name = 'STSongStd-Light-Acro')
    { 
        // Add GB font with half-width Latin
        for($i = 32;$i <= 126;$i++)
        $cw[chr($i)] = 500;
        $CMap = 'GBK-EUC-H';
        $registry = array('ordering' => 'GB1', 'supplement' => 2);
        $this->AddCIDFonts($family, $name, $cw, $CMap, $registry);
    } 

    function GetStringWidth($s)
    {
        if ($this->CurrentFont['type'] == 'Type0')
            return $this->GetMBStringWidth($s);
        else
            return parent::GetStringWidth($s);
    } 

    function GetMBStringWidth($s)
    { 
        // Multi-byte version of GetStringWidth()
        $l = 0;
        $cw = &$this->CurrentFont['cw'];
        $nb = strlen($s);
        $i = 0;
        while ($i < $nb)
        {
            $c = $s[$i];
            if (ord($c) < 128)
            {
                $l += $cw[$c];
                $i++;
            } 
            else
            {
                $l += 1000;
                $i += 2;
            } 
        } 
        return $l * $this->FontSize / 1000;
    } 

    function MultiCell($w, $h, $txt, $border = 0, $align = 'L', $fill = 0)
    {
        if ($this->CurrentFont['type'] == 'Type0')
            $this->MBMultiCell($w, $h, $txt, $border, $align, $fill);
        else
            parent::MultiCell($w, $h, $txt, $border, $align, $fill);
    } 

    function MBMultiCell($w, $h, $txt, $border = 0, $align = 'L', $fill = 0)
    { 
        // Multi-byte version of MultiCell()
        $cw = &$this->CurrentFont['cw'];
        if ($w == 0)
            $w = $this->w - $this->rMargin - $this->x;
        $wmax = ($w-2 * $this->cMargin) * 1000 / $this->FontSize;
        $s = str_replace("\r", '', $txt);
        $nb = strlen($s);
        if ($nb > 0 and $s[$nb-1] == "\n")
            $nb--;
        $b = 0;
        if ($border)
        {
            if ($border == 1)
            {
                $border = 'LTRB';
                $b = 'LRT';
                $b2 = 'LR';
            } 
            else
            {
                $b2 = '';
                if (is_int(strpos($border, 'L')))
                    $b2 .= 'L';
                if (is_int(strpos($border, 'R')))
                    $b2 .= 'R';
                $b = is_int(strpos($border, 'T')) ? $b2 . 'T' : $b2;
            } 
        } 
        $sep = -1;
        $i = 0;
        $j = 0;
        $l = 0;
        $nl = 1;
        while ($i < $nb)
        { 
            // Get next character
            $c = $s[$i]; 
            // Check if ASCII or MB
            $ascii = (ord($c) < 128);
            if ($c == "\n")
            { 
                // Explicit line break
                $this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
                $i++;
                $sep = -1;
                $j = $i;
                $l = 0;
                $nl++;
                if ($border and $nl == 2)
                    $b = $b2;
                continue;
            } 
            if (!$ascii)
            {
                $sep = $i;
                $ls = $l;
            } elseif ($c == ' ')
            {
                $sep = $i;
                $ls = $l;
            } 
            $l += $ascii ? $cw[$c] : 1000;
            if ($l > $wmax)
            { 
                // Automatic line break
                if ($sep == -1 or $i == $j)
                {
                    if ($i == $j)
                        $i += $ascii ? 1 : 2;
                    $this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
                } 
                else
                {
                    $this->Cell($w, $h, substr($s, $j, $sep - $j), $b, 2, $align, $fill);
                    $i = ($s[$sep] == ' ') ? $sep + 1 : $sep;
                } 
                $sep = -1;
                $j = $i;
                $l = 0;
                $nl++;
                if ($border and $nl == 2)
                    $b = $b2;
            } 
            else
                $i += $ascii ? 1 : 2;
        } 
        // Last chunk
        if ($border and is_int(strpos($border, 'B')))
            $b .= 'B';
        $this->Cell($w, $h, substr($s, $j, $i - $j), $b, 2, $align, $fill);
        $this->x = $this->lMargin;
    } 

    function Write($h, $txt, $link = '')
    {
        if ($this->CurrentFont['type'] == 'Type0')
            $this->MBWrite($h, $txt, $link);
        else
            parent::Write($h, $txt, $link);
    } 

    function MBWrite($h, $txt, $link)
    { 
        // Multi-byte version of Write()
        $cw = &$this->CurrentFont['cw'];
        $w = $this->w - $this->rMargin - $this->x;
        $wmax = ($w-2 * $this->cMargin) * 1000 / $this->FontSize;
        $s = str_replace("\r", '', $txt);
        $nb = strlen($s);
        $sep = -1;
        $i = 0;
        $j = 0;
        $l = 0;
        $nl = 1;
        while ($i < $nb)
        { 
            // Get next character
            $c = $s[$i]; 
            // Check if ASCII or MB
            $ascii = (ord($c) < 128);
            if ($c == "\n")
            { 
                // Explicit line break
                $this->Cell($w, $h, substr($s, $j, $i - $j), 0, 2, '', 0, $link);
                $i++;
                $sep = -1;
                $j = $i;
                $l = 0;
                if ($nl == 1)
                {
                    $this->x = $this->lMargin;
                    $w = $this->w - $this->rMargin - $this->x;
                    $wmax = ($w-2 * $this->cMargin) * 1000 / $this->FontSize;
                } 
                $nl++;
                continue;
            } 
            if (!$ascii or $c == ' ')
                $sep = $i;
            $l += $ascii ? $cw[$c] : 1000;
            if ($l > $wmax)
            { 
                // Automatic line break
                if ($sep == -1 or $i == $j)
                {
                    if ($this->x > $this->lMargin)
                    { 
                        // Move to next line
                        $this->x = $this->lMargin;
                        $this->y += $h;
                        $w = $this->w - $this->rMargin - $this->x;
                        $wmax = ($w-2 * $this->cMargin) * 1000 / $this->FontSize;
                        $i++;
                        $nl++;
                        continue;
                    } 
                    if ($i == $j)
                        $i += $ascii ? 1 : 2;
                    $this->Cell($w, $h, substr($s, $j, $i - $j), 0, 2, '', 0, $link);
                } 
                else
                {
                    $this->Cell($w, $h, substr($s, $j, $sep - $j), 0, 2, '', 0, $link);
                    $i = ($s[$sep] == ' ') ? $sep + 1 : $sep;
                } 
                $sep = -1;
                $j = $i;
                $l = 0;
                if ($nl == 1)
                {
                    $this->x = $this->lMargin;
                    $w = $this->w - $this->rMargin - $this->x;
                    $wmax = ($w-2 * $this->cMargin) * 1000 / $this->FontSize;
                } 
                $nl++;
            } 
            else
                $i += $ascii ? 1 : 2;
        } 
        // Last chunk
        if ($i != $j)
            $this->Cell($l / 1000 * $this->FontSize, $h, substr($s, $j, $i - $j), 0, 0, '', 0, $link);
    } 

    function _putfonts()
    {
        $nf = $this->n;
        foreach($this->diffs as $diff)
        { 
            // Encodings
            $this->_newobj();
            $this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences [' . $diff . ']>>');
            $this->_out('endobj');
        } 
        $mqr = get_magic_quotes_runtime();
        set_magic_quotes_runtime(0);
        foreach($this->FontFiles as $file => $info)
        { 
            // Font file embedding
            $this->_newobj();
            $this->FontFiles[$file]['n'] = $this->n;
            if (defined('FPDF_FONTPATH'))
                $file = FPDF_FONTPATH . $file;
            $size = filesize($file);
            if (!$size)
                $this->Error('Font file not found');
            $this->_out('<</Length ' . $size);
            if (substr($file, -2) == '.z')
                $this->_out('/Filter /FlateDecode');
            $this->_out('/Length1 ' . $info['length1']);
            if (isset($info['length2']))
                $this->_out('/Length2 ' . $info['length2'] . ' /Length3 0');
            $this->_out('>>');
            $f = fopen($file, 'rb');
            $this->_putstream(fread($f, $size));
            fclose($f);
            $this->_out('endobj');
        } 
        set_magic_quotes_runtime($mqr);
        foreach($this->fonts as $k => $font)
        { 
            // Font objects
            $this->_newobj();
            $this->fonts[$k]['n'] = $this->n;
            $this->_out('<</Type /Font');
            if ($font['type'] == 'Type0')
                $this->_putType0($font);
            else
            {
                $name = $font['name'];
                $this->_out('/BaseFont /' . $name);
                if ($font['type'] == 'core')
                { 
                    // Standard font
                    $this->_out('/Subtype /Type1');
                    if ($name != 'Symbol' and $name != 'ZapfDingbats')
                        $this->_out('/Encoding /WinAnsiEncoding');
                } 
                else
                { 
                    // Additional font
                    $this->_out('/Subtype /' . $font['type']);
                    $this->_out('/FirstChar 32');
                    $this->_out('/LastChar 255');
                    $this->_out('/Widths ' . ($this->n + 1) . ' 0 R');
                    $this->_out('/FontDescriptor ' . ($this->n + 2) . ' 0 R');
                    if ($font['enc'])
                    {
                        if (isset($font['diff']))
                            $this->_out('/Encoding ' . ($nf + $font['diff']) . ' 0 R');
                        else
                            $this->_out('/Encoding /WinAnsiEncoding');
                    } 
                } 
                $this->_out('>>');
                $this->_out('endobj');
                if ($font['type'] != 'core')
                { 
                    // Widths
                    $this->_newobj();
                    $cw = &$font['cw'];
                    $s = '[';
                    for($i = 32;$i <= 255;$i++)
                    $s .= $cw[chr($i)] . ' ';
                    $this->_out($s . ']');
                    $this->_out('endobj'); 
                    // Descriptor
                    $this->_newobj();
                    $s = '<</Type /FontDescriptor /FontName /' . $name;
                    foreach($font['desc'] as $k => $v)
                    $s .= ' /' . $k . ' ' . $v;
                    $file = $font['file'];
                    if ($file)
                        $s .= ' /FontFile' . ($font['type'] == 'Type1' ? '' : '2') . ' ' . $this->FontFiles[$file]['n'] . ' 0 R';
                    $this->_out($s . '>>');
                    $this->_out('endobj');
                } 
            } 
        } 
    } 

    function _putType0($font)
    { 
        // Type0
        $this->_out('/Subtype /Type0');
        $this->_out('/BaseFont /' . $font['name'] . '-' . $font['CMap']);
        $this->_out('/Encoding /' . $font['CMap']);
        $this->_out('/DescendantFonts [' . ($this->n + 1) . ' 0 R]');
        $this->_out('>>');
        $this->_out('endobj'); 
        // CIDFont
        $this->_newobj();
        $this->_out('<</Type /Font');
        $this->_out('/Subtype /CIDFontType0');
        $this->_out('/BaseFont /' . $font['name']);
        $this->_out('/CIDSystemInfo <</Registry (Adobe) /Ordering (' . $font['registry']['ordering'] . ') /Supplement ' . $font['registry']['supplement'] . '>>');
        $this->_out('/FontDescriptor ' . ($this->n + 1) . ' 0 R');
        if ($font['CMap'] == 'ETen-B5-H')
            $W = '13648 13742 500';
        elseif ($font['CMap'] == 'GBK-EUC-H')
            $W = '814 907 500 7716 [500]';
        else
            $W = '1 [' . implode(' ', $font['cw']) . ']';
        $this->_out('/W [' . $W . ']>>');
        $this->_out('endobj'); 
        // Font descriptor
        $this->_newobj();
        $this->_out('<</Type /FontDescriptor');
        $this->_out('/FontName /' . $font['name']);
        $this->_out('/Flags 6');
        $this->_out('/FontBBox [0 -200 1000 900]');
        $this->_out('/ItalicAngle 0');
        $this->_out('/Ascent 800');
        $this->_out('/Descent -200');
        $this->_out('/CapHeight 800');
        $this->_out('/StemV 50');
        $this->_out('>>');
        $this->_out('endobj');
    } 
} 

?>
